greenhouse

Abstract

To provide a vinyl greenhouse having a slip prevention structure in which a winding shaft rolls back and forth without slipping between itself and a pressing member during winding and unwinding. [Solution] A greenhouse (1) is provided with an arch-shaped frame (2), a connecting frame (3), a sheet (4) stretched on the outside of the connecting frame (3) and the arch-shaped frame (2), a pressure member (9) that presses the sheet (4) from the outside, and a shoulder-mounted ventilation device (13) that rolls on the outer surface of the arch-shaped frame (2) by attaching a winding shaft (27) to one end of a winding sheet (22) that has one end fixed to the arch-shaped frame (2) and rolling the other end on the outer surface of the arch-shaped frame (2) to wind and unwind the winding sheet (22) and opening and closing the shoulder-mounted window (19), and the greenhouse (1) has a slip prevention structure (58) that increases the pressing force that the winding shaft (27) receives from the pressure member (9) when it rolls on or near the curved portion (2b) of the arch-shaped frame (2).

Description

[Technical Field]

[0001] The present invention provides a structure comprising: a plurality of arch-shaped frames arranged at intervals in the ridge direction; a plurality of connecting frames extending in the ridge direction and connecting the inner and outer surfaces of the arch-shaped frames in a horizontal manner; The vinyl greenhouse comprises a sheet stretched on the outside of the connecting frame and the arch-shaped frame, a pressing member that presses the sheet from the outside, and a ventilation device that fixes one upper and lower end of a rolled-up sheet to a predetermined fixed position on the arch-shaped frame, attaches a roll-up shaft to the other upper and lower end of the rolled-up sheet, and interposes the roll-up shaft between the pressing member and the arch-shaped frame and rolls it on the outer surface of the arch-shaped frame to roll up and unroll the rolled-up sheet and open and close an open window. More specifically, the slip prevention structure allows the winding shaft to roll back and forth without slipping between it and the holding material during winding and unwinding, improving the lifespan of parts such as vinyl sheets, and improving the efficiency and ventilation capacity of ventilation work. [Background technology]

[0002] In a greenhouse, as in Patent Document 1, in which the outside of a number of arched frames arranged along the ridge direction are covered with vinyl sheets and then pressed down with fixed band-, tape-, or string-like pressure members with both ends extending in the respective bottom directions, a technique has been known in which a winding shaft fixed to one end of a movable film (hereinafter referred to as the "winding sheet") is rolled up from both bottom directions of the ridge, and when opening windows for ventilation, a winding shaft supported in the ridge direction and to which part of the pressure members are fixed is rotated in one direction to simultaneously wind up and tension each of the pressure members extending in both bottom directions, thereby equalizing the pressure force received by the pressure members on the winding sheet on both sides of the ridge. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-52082 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the winding structure described in Patent Document 1, if the curvature of the curved portion formed on the shoulder of the arch-shaped frame is large, the area of ​​contact between the clamping member and the outer surface of this curved portion increases, and therefore, when the winding shaft rolls around the curved portion or its vicinity, most of the pressing force received from the clamping member is supported by the curved portion or its vicinity.

[0005] This reduces the pressure from the retaining material, causing the winding shaft to slip while rolling, resulting in problems such as the vinyl sheet being damaged by friction with the retaining material due to the winding shaft's high speed rotation, taking longer to open and close the window, reducing the efficiency of ventilation work, and the vinyl sheet shifting, causing the window to open and close incompletely, thereby reducing ventilation capacity.

[0006] The present invention was devised in light of the above points, and aims to provide a greenhouse with a slip-prevention structure that allows the winding shaft to roll back and forth without slipping between it and the holding material during winding and unwinding, thereby improving the lifespan of parts such as vinyl sheets and improving the efficiency and ventilation capacity of ventilation work. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides a greenhouse comprising a plurality of arch-shaped frames spaced apart in the ridge direction, a plurality of connecting frames extending in the ridge direction and connecting the inner and outer surfaces of the arch-shaped frames in a horizontal manner, a sheet stretched over the outside of the connecting frames and the arch-shaped frames, a clamping member that presses the sheet from the outside, and a ventilation device in which one upper and lower ends of a rolled-up sheet are fixed to a predetermined fixed position on the arch-shaped frame and a winding shaft is attached to the other upper and lower ends of the rolled-up sheet, the winding shaft is interposed between the clamping member and the arch-shaped frame and rolls on the outer surfaces of the arch-shaped frame to wind and unwind the rolled up sheet and open and close an opening window.The greenhouse has a slip prevention structure that increases or stabilizes the pressing force that the rolled up shaft receives from the clamping member when the rolled up shaft rolls on or near the curved portion of the arch-shaped frame, thereby preventing the rolled up shaft from slipping.

[0008] Furthermore, when attempting to cause the winding shaft to roll smoothly, by increasing or stabilizing the pressing force that the winding shaft receives from the clamping member, the clamping force between the clamping member and the arch-shaped frame can be increased or stabilized, thereby reliably preventing the winding shaft from slipping while rolling around the curved portion or near the curved portion.

[0009] This prevents damage to the sheet due to friction with the pressing material caused by the high-speed rotation of the winding shaft caused by slippage of the winding shaft, reduced efficiency of ventilation work due to time taken to open and close the opening window, and deterioration of ventilation capacity due to incomplete opening and closing of the opening window caused by the sheet being displaced, even if the curvature of the curved part of the arch-shaped frame is large.

[0010] In addition, the present invention provides a slip prevention structure that includes a first connecting frame that horizontally connects the inner surface of the arch-shaped frame at the fixed position, a second connecting frame that horizontally connects the outer surface of the arch-shaped frame from the first connecting frame to the curved portion or near the curved portion, and a guide sheet portion that is stretched along a clamping member between the second connecting frame and the first connecting frame, and the winding shaft rolls from the upper surface of the guide sheet portion to the outer surface of the arch-shaped frame while receiving a pressing force from the clamping member that is extended outward by the second connecting frame.

[0011] In this case, the second connecting frame causes the clamping material to extend outward, increasing the tension of the clamping material itself and causing the clamping material around the winding shaft to move away from the outer surface of the curved section, making it less likely to come into contact, concentrating the pressure on the winding shaft.This increases the pressure that the winding shaft receives from the clamping material and prevents the winding shaft from slipping.

[0012] Furthermore, since the winding shaft rolls on the upper surface of the guide sheet portion, the pressing member protrudes further outward than in the case where only the second connecting frame is used, and the pressing force is further increased.

[0013] In addition, since the guide sheet portion is stretched along the pressing material, fluctuations in the pressure force that the winding shaft receives from the pressing material are reduced, allowing the winding shaft to roll stably without slipping and reducing problems that may occur during rolling.

[0014] In addition, the present invention provides a ventilation device that includes an above-shoulder ventilation device with a slip prevention structure that opens and closes an above-shoulder window that is opened above the shoulder area, and a below-shoulder ventilation device that opens and closes a below-shoulder window that is opened below the shoulder area, and the upper part of the rolled-up sheet of the below-shoulder ventilation device is stretched from the first connecting frame to the second connecting frame of the above-shoulder ventilation device to form a guide sheet portion of the above-shoulder ventilation device.

[0015] In this case, the upper part of the roll-up sheet, which is a component of the existing below-the-shoulder ventilation device, can also be used as the guide sheet part of the above-the-shoulder ventilation device, eliminating the need to provide a separate guide sheet part for the above-the-shoulder ventilation device.This reduces the number of parts in the ventilation device, thereby reducing parts costs and improving maintainability.

[0016] In addition, the present invention provides a ventilation device that includes a detection sensor that detects environmental parameters inside and outside the greenhouse, a drive motor that rotates the winding shaft, an operating power source that supplies power to operate the drive motor and the detection sensor, and a control device that automatically controls the operation of the drive motor based on a detection signal from the detection sensor.

[0017] In this case, the winding shaft can be automatically driven to open and close the opening window under specified environmental parameter conditions, eliminating the need for workers to constantly monitor temperature, humidity, etc. and open and close the opening window. This reduces the burden of monitoring and ensures that the growth environment is not degraded due to human error.

[0018] In addition, the present invention provides an anchor body comprising a plate-shaped anchor base to which the lower end of the arch-shaped frame is fixed and at least a portion of which is buried in the ground, and a pile-shaped anchor stay that is erected from the anchor base along the parallel arch-shaped frame and has a boss portion at the upper end that supports a tightening shaft to which the end of the pressure member is attached, and the tightening shaft displaces horizontally in response to the horizontal deformation of the arch-shaped frame.

[0019] In this case, only the arch-shaped frame deforms, preventing the pressing member from moving too far away from or too close to the outer surface of the arch-shaped frame. This reduces fluctuations in the pressure that the winding shaft receives from the pressing member, allowing the winding shaft to roll stably without slipping, and reducing problems that occur during rolling.

[0020] In addition, the present invention is such that the slip prevention structure has an arch-shaped frame made up of multiple L-shaped members connected together, each having the curved portion provided in the middle, and the rolling path of the winding shaft is set on or near the straight portion of the L-shaped members.

[0021] In this case, the pressure member is hardly bent, and the pressure member around the winding shaft is separated from the outer surface of the straight section and is hardly in contact with it, so that the pressure is concentrated on the winding shaft, thereby increasing the pressure that the winding shaft receives from the pressure member and suppressing slippage of the winding shaft. [Effects of the Invention]

[0022] According to the present invention, a plurality of arch-shaped frames are arranged at intervals in the ridge direction, and a plurality of connecting frames are extended in the ridge direction and connect the inner and outer surfaces of the arch-shaped frames in a horizontal manner. In a greenhouse comprising a sheet stretched over the outside of the connecting frame and the arch-shaped frame, a clamping member that presses the sheet from the outside, and a ventilation device in which one upper and lower ends of a rolled-up sheet are fixed to a predetermined fixed position on the arch-shaped frame, a winding shaft is attached to the other upper and lower ends of the rolled-up sheet, and the winding shaft is interposed between the clamping member and the arch-shaped frame and rolls on the outer surface of the arch-shaped frame to roll and unroll the rolled up sheet to open and close an open window, the winding shaft can roll back and forth between the clamping member and the rolled-up and unrolled without slipping, and a slip prevention structure can be provided that can improve the life of parts such as the vinyl sheet and improve the efficiency and ventilation capacity of ventilation work. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a front right perspective view showing the overall configuration of a greenhouse according to the present invention. [Figure 2] This is also a front view. [Figure 3] FIG. 10 is a front right perspective view of the vicinity of the below-the-shoulder ventilation device. [Figure 4] This is also a front view. [Figure 5] 5(a) and 5(c) are explanatory diagrams of the above-shoulder ventilation device, in which FIG. 5(a) is a front perspective view showing the entire automatic measurement system of the above-shoulder ventilation device, FIG. 5(b) is a front view of the control device, and FIG. 5(c) is a side perspective view of the solar panel. [Figure 6] 6(a) and 6(b) are explanatory views, respectively, in which FIG. 6(a) is a perspective view showing the above-shoulder window in an open state, and FIG. 6(b) is a perspective view showing the above-shoulder window in a closed state. [Figure 7] FIG. 1 is a front view of the vicinity of the above-shoulder ventilation device. [Figure 8] FIG. 1 is a front view of a conventional above-the-shoulder ventilation device and its vicinity. [Figure 9] FIG. [Figure 10] FIG. [Figure 11] These are explanatory diagrams of the slip prevention structure, where Figure 11(a) is a front view showing the displacement state of the tightening shaft in an integrated anchor of the present invention, and Figure 11(b) is a front view showing the displacement state of the tightening shaft in a conventional separate anchor. [Figure 12] FIG. 1 is a front view of the arch frame before and after assembly. DETAILED DESCRIPTION OF THE INVENTION

[0024] Hereinafter, an embodiment of the present invention relating to a greenhouse 1 will be described with reference to the drawings to facilitate understanding of the present invention. 1 is defined as the forward direction, the rightward direction, and the upward direction, and the positions and directions of the components described below are based on these directions. The "front-to-back direction" from the front F to the rear corresponds to the direction 17a of the ridge 17 (hereinafter referred to as the "ridge direction"), which is the horizontal portion where two sloped surfaces meet on the roof 5 above the shoulder 24 of the greenhouse 1.

[0025] First, the overall configuration of a greenhouse 1 to which the present invention is applied will be described with reference to FIGS.

[0026] In this greenhouse 1, multiple arch-shaped frames 2 are erected at predetermined intervals in the ridge direction 17a mentioned above, and the left and right lower ends 2a, 2a of these arch-shaped frames 2 are fixed to left and right anchor bodies 7, 7 described below and buried below the ground 8.

[0027] A plurality of connecting frames 3 are fixed to the plurality of arch-shaped frames 2 erected from the ground 8 in this manner, extending in the ridge direction 17a and connecting the inner and outer surfaces of the arch-shaped frames 2 in a horizontal manner. A transparent sheet 4 made of a material such as a vinyl sheet is stretched over the plurality of arch-shaped frames 2 and connecting frames 3, thereby forming the aforementioned arch-shaped roof portion 5, shoulder portions 24, and flat left and right side portions 6a and 6b located below the shoulder portions 24.

[0028] Furthermore, the sheet 4 is pressed from the outside by a plurality of string-like pressing members 9, and the left and right end portions 9a and 9b of the pressing members 9 are attached to left and right winding shafts 12 and 12, respectively.

[0029] Each of these tightening shafts 12 is supported by ring-shaped left and right boss portions 11a provided on the anchor body 7, respectively. By rotating the left and right tightening shafts 12 in opposite directions, the pressing material 9 is tightened and the pressure applied to the sheet 4 can be adjusted.

[0030] The sheet 4 is composed of a fixed sheet that is fixed to the arched frame 2 and the connecting frame 3, and a movable sheet 21 for opening and closing the opening window 18 that is not covered by the fixed sheet.

[0031] Among these opening windows 18, there are an above-shoulder window 19 that is opened above the shoulder portion 24 and a below-shoulder window 20 that is opened below the shoulder portion 24, and each of these is covered by a retractable sheet 22 and a retractable sheet 23, which are movable sheets 21, so that the above-shoulder ventilation device 13 and the below-shoulder ventilation device 14, which will be described in detail later, are formed.

[0032] Furthermore, at the front end of the greenhouse 1, a front edge sheet 70 is stretched and fixed under both winding sheets 22 and 23 to reduce the rolling resistance of winding shafts 27 and 28, which will be described later.

[0033] Since the structure of the greenhouse 1 is symmetrical when viewed from the front, the following explanation will focus on the right half of the greenhouse 1, and the left half will be omitted as it is the same.

[0034] Next, the above-mentioned below-the-shoulder ventilation device 14 will be described with reference to FIGS.

[0035] On the right side 6b of the greenhouse 1, an upper fixed frame 25 having a single dovetail groove and a lower fixed frame 26 having two dovetail grooves are fixed horizontally to the upper and lower outer surfaces of the approximately straight section of the arch-shaped frame 2 below the curved section 2b located at the shoulder section 24, and these upper and lower fixed frames 25 and 26 define the upper and lower ends of the shoulder window 20 mentioned above.

[0036] The upper end of the water-stop sheet 16 is attached to the lower dovetail groove portion 26b provided in the lower half of the lower fixed frame 26, and the lower end of this water-stop sheet 16 hangs down close to the ground 8 mentioned above, so that this water-stop sheet 16 can block the intrusion of rainwater and cold air into the greenhouse 1 from the sides of the bottom.

[0037] Furthermore, an upper dovetail groove portion 26a is provided in the upper half of the same lower fixed frame 26, and an insect net 15 is stretched between the dovetail groove portion 26a and the upper fixed frame 25 fixed above the lower fixed frame 26, and this insect net 15 can block the invasion of pests into the greenhouse 1.

[0038] As a result, even if the shoulder-lower window 20 is open, the waterproof sheet 16 and the insect net 15 form an intrusion prevention structure that prevents rainwater, cold air, pests, etc. from invading the greenhouse 1.

[0039] In addition, the aforementioned rolled up sheet 23 is hung down on the outside of the under-shoulder window 20 on which the insect net 15 is stretched in this way.

[0040] The above-mentioned winding shaft 28 is attached to the lower end of this winding sheet 23, while the upper end of the winding sheet 23 is fixed to a fixing position 36 on the arch-shaped frame 2.

[0041] Then, by rotating the winding shaft 28 in the winding direction and rolling it on the outer surface of the arch-shaped frame 2, the winding sheet 23 is wound upward to open the under-shoulder window 20, and by rotating the winding shaft 28 in the opposite direction, the winding sheet 23 is rewound downward to close the under-shoulder window 20.

[0042] Furthermore, a pressure member 9 is arranged on the outside of this winding sheet 23, with its right end fixed to the aforementioned winding shaft 12, and the winding sheet 23 is interposed between this pressure member 9 and the arch-shaped frame 2, and the winding shaft 28 at the lower end of the winding sheet 23 is also constantly pressed against the arch-shaped frame 2 by the pressure member 9 while rolling.

[0043] This allows the winding shaft 28 to roll on the outer surface of the arch-shaped frame 2 under pressure from the retaining member 9, thereby winding and unwinding the winding sheet 23 and opening and closing the under-shoulder window 20.

[0044] In addition, a manual winding tool 35 is connected to the winding shaft 28 so as to be manually rotatable.

[0045] In this manual winding device 35, the front end of the winding shaft 28 is connected to the output shaft 29b from the box-shaped transmission 29, while the tip of the operating arm 33 is connected to the input shaft 29a to the transmission 29 via a universal joint 30.

[0046] An L-shaped operating handle 34 is connected to the base end of the operating arm 33, and a gripping pipe 57 is loosely fitted into the operating arm 33 near the base end.

[0047] As a result, when the operating handle 34 is rotated while holding the gripping pipe 57 with one hand, the rotational force is transmitted from the operating arm 33 via the transmission 29 to the winding shaft 28, allowing the winding shaft 28 to be manually rolled on the outer surface of the arch-shaped frame 2. In this way, a window opening and closing mechanism is formed that allows the shoulder window 20 to be freely opened and closed.

[0048] The upper end of the aforementioned winding sheet 23 is hooked and fixed at a fixing position 36 to a first connecting frame 31 that connects the inner surfaces of the arch-shaped frames 2 in a horizontal manner.

[0049] Furthermore, a second connecting frame 32 is connected crosswise to the outer surface of the arch-shaped frame 2 from this first connecting frame 31 to the aforementioned curved portion 2b or near the curved portion, and the upper end of the winding sheet 23 from below is inserted from the outside to the inside of the arch-shaped frame 2 so as to straddle this second connecting frame 32, and is hooked and fixed to the first connecting frame 31.

[0050] This allows the upper part of the winding sheet 23 to be stretched from the first connecting frame 31 to the second connecting frame 32, forming a guide sheet portion 37 that indicates an inclination direction that approaches the arch-shaped frame 2 as it goes upward. This guide sheet portion 37 also functions as a rolling surface for the winding shaft 27 of the above-shoulder ventilation device 13, which will be described in detail later.

[0051] The above-described intrusion prevention structure, window opening / closing structure, guide sheet portion 37, etc. constitute below-the-shoulder ventilation device 14.

[0052] Next, the above-shoulder ventilation device 13 will be described with reference to FIGS. 2 and 5 to 8. FIG.

[0053] As shown in Figures 2, 5, and 6, the aforementioned shoulder window 19 is opened in the right side portion 5a of the roof on the right side when viewed from the front of the roof portion 5 of the greenhouse 1, and the outside of this shoulder window 19 is covered with a rolled-up sheet 22 with a strip-shaped sheet holder 71 wrapped around its front edge.

[0054] The aforementioned winding shaft 27 is attached to the lower end of this winding sheet 22, while the upper end of the winding sheet 22 is attached to the dovetail groove 38a of the summit fixing frame 38, which is fixed on a crosspiece to the outer surface of the arch-shaped frame 2 near the ridge 17.

[0055] As with the above-mentioned under-shoulder ventilation device 14, as shown in Figure 6(a), by rotating this winding shaft 27 in the winding direction and rolling it on the outer surface of the arch-shaped frame 2, the winding sheet 22 is wound upward to open the over-shoulder window 19, and as shown in Figure 6(b), by rotating the winding shaft 27 in the opposite direction, the winding sheet 22 is rewound downward to close the over-shoulder window 19.

[0056] Furthermore, a pressure member 9 is arranged on the outside of this winding sheet 22, and is interposed between this pressure member 9 and the arch-shaped frame 2, and the winding shaft 27 is also pressed against the arch-shaped frame 2 by the pressure member 9 while rolling.

[0057] As a result, the winding shaft 27 rolls on the outer surface of the arch-shaped frame 2 under pressure from the retaining member 9, winding and unwinding the winding sheet 22 and opening and closing the above-shoulder window 19. In this way, a basic window opening and closing structure capable of opening and closing the below-shoulder window 19 is formed.

[0058] Furthermore, as shown in Figures 5 and 6, unlike the above-shoulder ventilation device 14, an automatic opening / closing system 39 is connected to the winding shaft 27, which automatically opens and closes the above-shoulder window 19 in response to environmental parameters such as temperature and humidity.

[0059] In this automatic opening / closing system 39, a temperature sensor 40 is disposed inside the greenhouse 1 so as to hang down near the crops 44 being cultivated.

[0060] On the other hand, a frame body 45 is installed outside the greenhouse 1, and a humidity sensor 41 is attached to the upper end of a pipe 45a of this frame body 45, and a solar panel 43 is attached to the top of the frame body 45, with its light-receiving surface 43a tilted toward the south to increase the amount of power generation.

[0061] An electric winding device 46 is connected to the winding shaft 27 so as to be automatically rotatable. In this electric winding device 46, the front end of the winding shaft 27 is connected to an output shaft 47a from a winding motor 47, and the upper end of an operating arm 50 is connected to the lower part of the winding motor 47 via a universal joint 49.

[0062] This operating arm 50 has a double pipe structure in which the upper end of a lower pipe 50b, which has a smaller diameter than the upper pipe 50a, is inserted into the lower end of the upper pipe 50a, and the operating arm 50 can be extended and retracted by sliding the upper and lower pipes 50a and 50b against each other.

[0063] Of these, the lower end of the lower pipe 50b is rotatably supported on an attachment portion 51a of a stake 51 erected from the ground 8, so that the operating arm 50 can tilt around the attachment portion 51a.

[0064] As a result, even when the winding shaft 27 rotates and rolls on the outer surface of the arch-shaped frame 2, the operating arm 50 tilts and extends, allowing the winding motor 47 to move in accordance with the winding shaft 27.

[0065] Therefore, when the winding motor 47 is driven, a stable rotational force is transmitted from the output shaft 47a to the winding shaft 27, and the winding shaft 27 can be electrically rotated on the outer surface of the arch-shaped frame 2. In this way, the electric winding device 46 is formed.

[0066] As mentioned above, the operating arm 50 has a double pipe structure and is hollow, so the cable 48 that supplies power to the winding motor 47 is inserted from the upper end of the upper pipe 50a and can be pulled out from the middle.

[0067] Furthermore, a control panel 42 is disposed on the frame 45 directly below the solar panel 43. In addition to the cable 48 from the electric winding device 46, a cable 52 from the temperature sensor 40, a cable 53 from the humidity sensor 41, and a cable 54 from the solar panel 43 are connected to this control panel 42.

[0068] The power required to operate the temperature sensor 40, humidity sensor 41, control panel 42, and electric winding device 46 is supplied from the solar panel 43 via the cable 54 and a battery (not shown).

[0069] In this control panel 42, based on the temperature inside the greenhouse indicated by a temperature signal from the temperature sensor 40 and the rainfall conditions indicated by a humidity signal from the humidity sensor 41, driving power is supplied to the winding motor 47 of the electric winding device 46 to open and close the shoulder-mounted window 19. In this way, an automatic opening / closing system 39 having the temperature sensor 40, humidity sensor 41, solar panel 43, electric winding device 46, control panel 42, etc. is formed.

[0070] The above-shoulder ventilation device 13 is made up of the above-mentioned basic window opening and closing structure, automatic opening and closing system 39, etc.

[0071] That is, the shoulder-mounted ventilation device 13, which is a ventilation device, has a temperature sensor 40 and a humidity sensor 41, which are detection sensors that detect the temperature and humidity, which are environmental parameters inside and outside the greenhouse 1, a winding motor 47, which is a drive motor that rotates and drives the winding shaft 27, a solar panel 43, which is an operating power source that supplies power to operate the winding motor 47, the temperature sensor 40, and the humidity sensor 41, and a control panel 42, which is a control device that automatically controls the operation of the winding motor 47 based on the temperature signal and humidity signal, which are detection signals from the temperature sensor 40 and the humidity sensor 41.

[0072] In this case, the shoulder window 19, which is an opening window, can be opened and closed by automatically driving the winding shaft 27 under specified conditions of temperature and humidity, which are environmental parameters. This eliminates the need for workers to constantly monitor the temperature, humidity, etc. and open and close the shoulder window 19. This reduces the burden of monitoring and ensures that the growth environment is not deteriorated due to human error.

[0073] 7 and 8, a slip prevention structure 58 for the winding shaft 27 in the above-the-shoulder ventilation device 13 will be described.

[0074] 8, the second connecting frame 32 normally connects the inner surface of the curved portion 2b of the arch-shaped frame 2 to the crosspiece, and in this case, for example, when the winding shaft 27 is at rolling position 55 in the curved portion 2b, the pressing member 9 is bent significantly in a V-shape with the winding shaft 27 as the boundary, as shown by the dotted line in the figure. In this case, most of the pressing member 9 around the winding shaft 27 is supported in contact with the outer surface of the curved portion 2b, so the pressing force that the winding shaft 27 receives from the pressing member 9 is small.

[0075] When the winding shaft 27 rolls upward and is at a rolling position 56 in the substantially straight portion 2c separated from the curved portion 2b, for example, the degree of bending of the presser member 9 is small, as indicated by the two-dot chain line in the figure. In this case, the presser member 9 around the winding shaft 27 is separated from the outer surface of the substantially straight portion 2c and barely comes into contact with the outer surface, so that the pressing force is concentrated on the winding shaft 27, and the pressing force that the winding shaft 27 receives from the presser member 9 increases.

[0076] Therefore, when the winding shaft 27 rolls under the clamping member 9 that is simply stretched along the outer surface of the arch-shaped frame 2, as in the conventional case, the pressure force received from the clamping member 9 at the curved portion 2b of the arch-shaped frame 2 is reduced, making the winding shaft 27 more likely to slip.

[0077] In contrast, as shown in Figure 7, in the slip prevention structure 58 of the present invention, the second connecting frame 32 connects the outer surface of the curved portion 2b of the arch-shaped frame 2 to the cross member, and in this case, the tension of the clamping member 9 itself increases by the amount that the clamping member 9 is extended outward by the second connecting frame 32.

[0078] Furthermore, the pressing member 9 around the winding shaft 27 is separated from the outer surface of the curved portion 2b and is less likely to come into contact with it, so that the pressing force is concentrated on the winding shaft 27.

[0079] This increases the pressure force that the winding shaft 27 receives from the pressing member 9, making it possible to prevent the winding shaft 27 from slipping.

[0080] In addition, when the winding shaft 27 is in the aforementioned rolling position 55, as shown by the dotted line in the figure, the winding shaft 27 is on the upper surface of the aforementioned guide sheet portion 37, so that the pressing member 9 protrudes further outward than when only the second connecting frame 32 is present, further increasing the pressing force.

[0081] Moreover, as mentioned above, this guide sheet portion 37 is inclined in a direction that approaches the arch-shaped frame 2 as it goes up, and the pressing member 9 that protrudes outward by the second connecting frame 32 also has the same inclination in the area of ​​this guide sheet portion 37, and the guide sheet portion 37 is stretched along the pressing member 9. Therefore, the fluctuation in the pressing force that the winding shaft 27 receives as it rolls between the guide sheet portion 37 and the pressing member 9 is small, allowing for stable rolling.

[0082] When the winding shaft 27 rolls up to the outer surface of the approximately straight section 2c of the arch-shaped frame 2 and reaches the aforementioned rolling position 56, the degree of bending of the clamping member 9 becomes even smaller than before due to the amount to which the clamping member 9 of the curved section 2b is protruded outward by the second connecting frame 32, and the clamping member 9 around the winding shaft 27 no longer comes into contact with the outer surface of the approximately straight section 2c at all.As a result, the pressing force is further concentrated on the winding shaft 27, and the pressing force that the winding shaft 27 receives from the clamping member 9 further increases.

[0083] That is, a plurality of arch-shaped frames 2 arranged at intervals in the ridge direction 17a, a plurality of connecting frames 3 extending in the ridge direction 17a and connecting the inner and outer surfaces of the arch-shaped frames 2 in a horizontal manner, a sheet 4 stretched on the outside of the connecting frames 3 and the arch-shaped frames 2, a pressing member 9 pressing the sheet 4 from the outside, and a winding sheet 22 having an upper end fixed to a predetermined fixing position 36 of the arch-shaped frame 2, and a winding shaft 27 attached to the lower end of the winding sheet 22, and the winding shaft 27 is connected to the pressing member 9 and the arch-shaped frames 2. In a greenhouse (1) equipped with a shoulder ventilation device (13) which is a ventilation device interposed between the arch-shaped frame (2) and which rolls on the outer surface of the arch-shaped frame (2) to wind and unwind a winding sheet (22) to open and close a shoulder window (19) which is an opening window, the greenhouse (1) has a slip prevention structure (58) which increases or stabilizes the pressing force received by the winding shaft (27) from the retaining member (9) when the winding shaft (27) rolls on or near the curved portion (2b) of the arch-shaped frame (2).

[0084] Furthermore, when attempting to cause the winding shaft 27 to roll smoothly, by increasing or stabilizing the pressing force that the winding shaft 27 receives from the pressure member 9, the clamping force between the pressure member 9 and the arch-shaped frame 2 can be increased or stabilized, thereby reliably preventing the winding shaft 27 from slipping while rolling around the curved portion 2b or near the curved portion 2b.

[0085] This prevents damage to the sheet 4 due to friction with the retaining member 9 caused by slippage of the winding shaft 27 caused by the winding shaft 27 rotating at high speed, reducing the efficiency of ventilation work due to the time it takes to open and close the shoulder window 19, and deteriorating ventilation capacity due to the sheet 4 shifting and the shoulder window 19 not opening or closing completely.

[0086] The slip prevention structure 58 also has a first connecting frame 31 that connects the inner surface of the arch-shaped frame 2 in a horizontal manner at the fixed position 36, a second connecting frame 32 that connects the outer surface of the arch-shaped frame 2 from the first connecting frame 31 to the curved portion 2b or near the curved portion 2b in a horizontal manner, and a guide sheet portion 37 that is stretched along the clamping member 9 between the second connecting frame 32 and the first connecting frame 31, and the winding shaft 27 rolls from the upper surface of the guide sheet portion 37 to the outer surface of the arch-shaped frame 2 while receiving a pressing force from the clamping member 9 that is extended outward by the second connecting frame 32.

[0087] In this case, the second connecting frame 32 causes the pressure member 9 to extend outward, which increases the tension of the pressure member 9 itself and causes the pressure member 9 around the winding shaft 27 to move away from the outer surface of the curved portion 2b, making it less likely to come into contact with the outer surface, concentrating the pressure on the winding shaft 27. This increases the pressure that the winding shaft 27 receives from the pressure member 9 and prevents the winding shaft 27 from slipping.

[0088] Furthermore, since the winding shaft 27 rolls on the upper surface of the guide sheet portion 37, the pressing member 9 protrudes further outward than when only the second connecting frame 32 is used, and the pressing force is further increased.

[0089] In addition, since the guide sheet portion 37 is stretched along the pressing member 9, fluctuations in the pressing force that the winding shaft 27 receives from the pressing member 9 are reduced, which allows the winding shaft 27 to roll stably without slipping and reduces troubles that may occur during rolling.

[0090] The ventilation device also includes an above-shoulder ventilation device 13 with a slip prevention structure 58 that opens and closes the above-shoulder window 19 that is opened above the shoulder portion 24, and a below-shoulder ventilation device 14 that opens and closes the below-shoulder window 20 that is opened below the shoulder portion 24, and the upper part of the roll-up sheet 23 of the below-shoulder ventilation device 14 is stretched from the first connecting frame 31 to the second connecting frame 32 of the above-shoulder ventilation device 13 to form a guide sheet portion 37 of the above-shoulder ventilation device 13.

[0091] In this case, the upper part of the winding sheet 23, which is a component of the existing below-the-shoulder ventilation device 14, can also be used as the guide sheet portion 37 of the above-the-shoulder ventilation device 13, so there is no need to provide a separate guide sheet portion for the above-the-shoulder ventilation device 13.As a result, the number of parts of the above-the-shoulder ventilation device 13, which is a ventilation device, can be reduced, reducing part costs and improving maintainability.

[0092] Next, the slip prevention structure 59 using the anchor body 7 will be described with reference to FIGS. 3, 4, 9 to 11. FIG.

[0093] As shown in Figures 4 and 9, the anchor body 7 according to the present invention is an integrated anchor in which a disk-shaped anchor base 10 and a pile-shaped anchor stay 11 are integrated together, and the lower end 2a of the arch-shaped frame 2 described above is joined substantially perpendicularly to the approximate center of the anchor base 10 in a plan view by welding or the like.

[0094] Furthermore, the lower ends of the anchor stays 11 are similarly joined approximately vertically by welding or the like near the outer peripheral edge of the anchor base 10 in a plan view, and the anchor stays 11 are erected from the anchor base 10 so as to follow the arch-shaped frame 2 that is arranged alongside it.

[0095] In addition, the upper part of the anchor stay 11 is bent into a ring shape to form a boss portion 11a, and the anchor base 10 is buried to a depth such that this boss portion 11a protrudes slightly from the ground 8.

[0096] This allows a plurality of anchor bodies 7 to be buried at predetermined intervals in the ridge direction 17a at both ends of the greenhouse 1, to a depth such that only the boss portion 11a protrudes from the ground 8. As described above, the tightening shaft 12, to which the left and right end portions 9a and 9b of the pressing member 9 are attached, is rotatably supported by this boss portion 11a.

[0097] In the above-described configuration, if the arch-shaped frame 2 is tilted significantly to the left or right due to a sudden gust of wind or the like, and the arch-shaped frame 2 is connected to the anchor stay 11 via the anchor base 10, as in the anchor body 7 of the present invention shown in Figure 11(a), the anchor stay 11 will also tilt to the left or right in response to the left or right tilt of the arch-shaped frame 2, and the tightening shaft 12 journaled on its boss portion 11a will also be displaced horizontally to the left or right.

[0098] As a result, the relative positional relationship between position 2d (shown by double lines in the figure) of the arch-shaped frame 2 and position 9d (shown by black circles in the figure) of the pressure member 9 attached to the winding shaft 12, which were adjacent to each other, remains almost unchanged before and after tilting the arch-shaped frame 2 left and right. As a result, the length of the pressure member 9 does not change and the change in tension is small, so the fluctuations in the pressing force that the winding shafts 27 and 28 receive from the pressure member 9 are small, allowing for stable rolling.

[0099] In contrast, in the conventional type shown in Figure 11(b), the anchor base 65 that joins the arch-shaped frame 2 and the pile-shaped anchor stay 66 are buried as separate anchors, and when the tightening shaft 12 supported by the boss portion 66a does not displace, only the arch-shaped frame 2 tilts left and right.

[0100] As a result, the relative positional relationship between the position 2d of the arch-shaped frame 2 and the position 9d of the pressing member 9 attached to the winding shaft 12 changes significantly before and after the arch-shaped frame 2 is tilted left and right.

[0101] For example, when the arch-shaped frame 2 tilts to the left, the pressure member 9 moves farther away from the outer surface of the arch-shaped frame 2, position 9d of the pressure member 9 moves lower than position 2d of the arch-shaped frame 2, and the pressure member 9 is pulled toward the winding shaft 12, increasing the tension. Conversely, when the arch-shaped frame 2 tilts to the right, most of the pressure member 9 approaches the outer surface of the arch-shaped frame 2, position 9d of the pressure member 9 moves higher than position 2d of the arch-shaped frame 2, and the pressure member 9 loosens, decreasing the tension. As a result, there is a large fluctuation in the pressing force that the winding shafts 27 and 28 receive from the pressure member 9.

[0102] In other words, the slip prevention structure 59 has an anchor body 7 consisting of a plate-shaped anchor base 10 to which the lower end 2a of the arch-shaped frame 2 is fixed and at least a portion of which is buried in the ground, and a pile-shaped anchor stay 11 that is erected from the anchor base 10 along the parallel arch-shaped frame 2 and has a boss portion 11a at the upper end that supports a tightening shaft 12 to which the ends 9a and 9b of the pressure member 9 are attached, and the tightening shaft 12 displaces horizontally in response to the tilting, which is the horizontal deformation, of the arch-shaped frame 2.

[0103] In this case, as shown in Figure 11(b), only the arch-shaped frame 2 deforms, preventing the pressure member 9 from moving too close or too far away from the outer surface of the arch-shaped frame 2. This reduces the fluctuation in the pressure that the winding shafts 27, 28 receive from the pressure member 9, allowing the winding shafts 27, 28 to roll stably without slipping, reducing problems that may occur during rolling.

[0104] As shown in Figures 3 and 10, left and right manual tightening devices 61, 61 are installed near the left and right corners of the front of the greenhouse 1 for manually tightening the left and right end portions 9a, 9b of the aforementioned pressure member 9.

[0105] In this manual winding tightening device 61·61, the front ends of the aforementioned winding shafts 12·12, to which the left and right end portions 9a·9b of the pressure member 9 are attached, are inserted and connected to the rear part of a joint portion 62, which is rotatably supported on the main body 63 by a bearing or the like.

[0106] A base end 64 a of an operating handle 64 is detachably connected to the front part of this joint part 62 .

[0107] As a result, when the operating handle 64 of the manual tightening device 61 is rotated, the rotational force is transmitted to the tightening shaft 12 via the joint portion 62, and the tightening shaft 12 can be rotated manually.

[0108] In the above-described configuration, when the operating handles 64 of the left and right manual tightening devices 61, 61 are rotated in opposite directions, the left and right tightening shafts 12, 12 journaled on the boss portions 11a of the anchor bodies 7 at both ends of the greenhouse 1 also rotate in opposite directions, allowing the tightening and loosening of the multiple clamping members 9 connected between the tightening shafts 12, 12 to be performed simultaneously regardless of the ridge-direction position of the clamping members 9.

[0109] Therefore, it is possible to reliably prevent the sheet 4 from being damaged by friction with the pressing material due to misalignment of the timing of tightening and loosening the pressing material 9, or the sheet 4 from being wrinkled and creating openings.

[0110] Next, the slip prevention structure 60 formed by assembling the arch frame 2 will be described with reference to FIGS.

[0111] As shown in FIG. 12, the arch-shaped frame 2 according to the present invention is formed by connecting three V-shaped pipes 67, 68, and 69 by fastening or welding.

[0112] Of these, the left pipe 67 is a straight pipe bent in a V-shape around the middle, and is formed from a first straight portion 67a and a second straight portion 67c that are approximately straight on both ends, and a curved portion 67b that is bent midway.

[0113] The roof pipe 68 and the right pipe 69 are similar, with the roof pipe 68 being formed from a first straight portion 68a and a second straight portion 68c which are approximately straight, and the aforementioned curved portion 68b which has been bent, and the right pipe 69 being formed from a first straight portion 69a and a second straight portion 69c which are approximately straight, and the curved portion 69b (the same as the aforementioned 2b) which has been bent.

[0114] In this case, the bending process is generally performed by holding at least one end of the straight pipe and rotating it inward while pressing the curved surface of the abutment against the middle part of the straight pipe. Therefore, by optimizing the holding position and length of the straight pipe and the curved surface of the abutment, it is possible to ensure the accuracy of setting the bending angle of the L-shaped pipe and the linearity near the end.

[0115] In contrast, when forming the arch-shaped frame 2 by bending a single long straight pipe in three places, as in the past, when bending the pipe from the second place onwards, the residual stress generated during the previous bending process affects the processing accuracy, making it difficult to obtain the specified bending angle and to ensure sufficient straight sections.

[0116] In the present invention, bending is performed on each of the three L-shaped pipes 67, 68, and 69, so this problem does not occur and straight sections 67a, 67c, 68a, 68c, 69a, and 69c with sufficient linearity can be obtained, and the rolling paths of the aforementioned winding shafts 27 and 28 can be set on or near these straight sections 67a, 67c, 68a, 68c, 69a, and 69c.

[0117] For example, as shown in Figure 7, in the above-shoulder ventilation device 13, the rolling path of the winding shaft 27 is in the section from the straight section 69a of the right pipe 69 to the straight section 68c of the roof pipe 68, which corresponds to the above-mentioned approximately straight section 2c, and is set in or near a straight section with sufficient linearity.

[0118] That is, the slip prevention structure 60 has an arch-shaped frame 2 formed by connecting three L-shaped members, a left pipe 67, a roof pipe 68, and a right pipe 69, each of which has a curved portion 67b, 68b, and 69b provided in the middle thereof, and the rolling path of the winding shaft 27 is set to the straight portions 68c and 69a of the left pipe 67, roof pipe 68, and right pipe 69 or in their vicinity.

[0119] In this case, the pressure member 9 is hardly bent, and the pressure member 9 around the winding shaft 27 is separated from the outer surfaces of the straight sections 68c and 69a and is hardly in contact with them, so that the pressing force is concentrated on the winding shaft 27. This increases the pressing force that the winding shaft 27 receives from the pressure member 9 and prevents the winding shaft 27 from slipping.

[0120] As described above, the greenhouse 1 of the present invention is provided with a slip prevention structure that allows the winding shaft 27 to roll back and forth without slipping between it and the holding material 9 during winding and unwinding, improving the lifespan of parts such as the vinyl sheet and improving the efficiency and ventilation capacity of ventilation work.

[0121] Although the present invention has been described through the above-mentioned embodiments, the present invention is not limited to these. Furthermore, the above-mentioned effects are merely a list of the most preferable effects resulting from the present invention, and the effects of the present invention are not limited to those described in the present embodiments. [Explanation of symbols]

[0122] 1. Greenhouse 2 Arched Frame 2a Bottom edge 3 Connecting Frame 4 seats 7 Anchor body 9 Clamp 9a end 10 Anchor Base 11 Anchor stay 11a Boss part 12 Winding shaft 13 Above-the-shoulder ventilation device (ventilator) 14 Under-the-shoulder ventilation device 17a Building direction 19 Shoulder window (opening window) 20 Shoulder window 22 Rolling sheet 23 Rolling sheet 24 Shoulder 27 Winding shaft 31 First connecting frame 32 Second connecting frame 36 Fixed position 37 Guide sheet section 40 Temperature sensor (detection sensor) 41 Humidity sensor (detection sensor) 42 Control panel (control device) 43 Solar panels (operating power source) 47 Winding motor (drive motor) 58·59·60 Slip prevention structure 67 Left pipe (L-shaped part) 67b·68b·69b(2b) Curved section 68 Roof pipe (L-shaped member) 68c / 69a Straight section 69 Right pipe (L-shaped part)

Claims

1. A plurality of arch-shaped frames arranged at intervals in the ridge direction; a plurality of connecting frames extending in the ridge direction and connecting the inner and outer surfaces of the arch-shaped frames in a horizontal manner; a sheet stretched on the outside of the connecting frame and the arch-shaped frame; a pressing member that presses the sheet from the outside; a ventilation device in which one upper and lower ends of a winding sheet are fixed at predetermined fixed positions on the arch-shaped frame, a winding shaft is attached to the other upper and lower ends of the winding sheet, the winding shaft is interposed between the pressing member and the arch-shaped frame, and the winding shaft is rolled on the outer surface of the arch-shaped frame to wind and unwind the winding sheet to open and close the opening window; In a greenhouse equipped with The winding shaft has a slip prevention structure that prevents slippage of the winding shaft by increasing or stabilizing the pressing force that the winding shaft receives from the pressing member when the winding shaft rolls on or near the curved portion of the arch-shaped frame. A greenhouse characterized by:

2. The slip prevention structure is a first connecting frame that connects the inner surfaces of the arch-shaped frames in a horizontal manner at the fixed position; a second connecting frame that connects the outer surfaces of the arch-shaped frame from the first connecting frame to the curved portion or the vicinity of the curved portion in a horizontal manner; a guide sheet portion stretched along the pressing member between the second connecting frame and the first connecting frame, The winding shaft rolls from the upper surface of the guide sheet portion to the outer surface of the arch-shaped frame while receiving a pressing force from the pressing member that is extended outward by the second connecting frame.

2. The greenhouse according to claim 1 .

3. The ventilation device includes: a shoulder ventilation device with a slip prevention structure that opens and closes shoulder windows that are opened above the shoulders; and a below-shoulder ventilation device that opens and closes a below-shoulder window that is opened below the shoulder portion, The upper part of the rolled up sheet of the under-shoulder ventilation device is stretched from the first connecting frame to the second connecting frame of the above-shoulder ventilation device to form a guide sheet part of the above-shoulder ventilation device. The greenhouse according to claim 2 .

4. The ventilation device includes: a detection sensor for detecting environmental parameters inside and outside the greenhouse; a drive motor that rotates the winding shaft; an operating power supply that supplies power to operate the drive motor and the detection sensor; a control device that automatically controls the operation of the drive motor based on a detection signal from the detection sensor; 3. The greenhouse according to claim 1 or 2.

5. The slip prevention structure is a plate-shaped anchor base to which a lower end of the arch-shaped frame is fixed and at least a portion of which is buried in the ground; An anchor body is provided which is erected from the anchor base along the arch-shaped frames arranged in parallel, and which is composed of a stake-shaped anchor stay on which a tightening shaft to which an end of the pressing member is attached is journaled at a boss portion at the upper end, The winding shaft is displaced horizontally in response to the horizontal deformation of the arch-shaped frame.

2. The greenhouse according to claim 1 .

6. The slip prevention structure is an arch-shaped frame formed by connecting a plurality of L-shaped members each having the curved portion provided midway; The rolling path of the winding shaft is set on or near the straight portion of the L-shaped member.

2. The greenhouse according to claim 1 .

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